Pipe-clamp for ground-contacts.



, T. NAGBL. y HPB CLAMP ron GROUND ooNTAoTs.

APPLIOATION FILED DBO. 31, 1908.

Patented May 11, 1909.

1 E cams PETERS co., wlxsnmaran, n. x..

annonoanNAeiiL, oiicnjiciieo, ILLINOIS.V

PIPE-CLAMP FOR GRQUND-CONTACTS.

i l'I,Specifieatioii oilrLe'tters Patent.

'resented May 1 1, 190e.

Application filed December 31, 1908. VSerial No. 470,224.

To all whom it may concer/ir: n

Be it known that I, TIIEODORE NAGEL, a citizen of the United States, and a resident of Chicago, in the county of Cookf and State of Illinois, have invented certain new and useful Improvements in Pipe- Clamps for Ground-Contacts, of which the following is a clear, full, and exact description.

My invention relates to ground contacts for electric circuits, particularly that type of contacts that are attached tov metallic pipe-S- Y f The object of my invention is to providea simple contrivance which can be easily and quickly attached to pipes and clamped securely thereon by taking up any slack of the band of the same that may remain after securing the ends Vthereof with the ngers, so as to absolutely prevent any independent movement of said contrivance either lengthwise or transversely upon the pipe. This VI accomplish by the means hereinafter de-j scribed and as particularly pointed out in the claims.

In the drawings Figurel isa side view of my inventionshowing it applied to a pipe. Fig. 2 isa similar view showing the saddle in section. Fig. 3 is an end view of the same. Fig. t is a perspective view of the. saddle.

Fig. 5 is a perspective view of the clampingplate.

Referring to the drawings A represents the pipe to which my invention is applied; B the brass-band or strap used in connection therewith; C the saddle in which the ends of the strap B are secured; D the inverted channel-shaped clamp, and Ethe bindingpost. I v

The saddle C consists of a metallioblock, the length of which is transverse to the pipe and the surface of which, comingin contact withsaid pipe, is concaved soas to accommodate the curvature of thefsame and the ends thereof bear against said pipe.V The ends e of the saddle arekcurved or iianged upward, and inidvvaybetween itsends it is provided with a flattened surface or plateau a, the center of which is tapped to receive the strap is passedunderone of said bars a sufficient distance and then bent backy upon itself, preferably, over the adjacent end of the saddle, and then said strap is passed around the pipe and'its other endfispassed under the othervbar cl, and drawn astightly as possible with the fingers, or, with'pincers, if desired, and then bent back upon itself, inthe same manner as the first mentioned end. The channel-shaped clamp Dis thenrinverted and placed upon the saddle so that its flanged ends will comein contact with and rest upon the ends of the band at points between the flanged ends of the 'saddle and said plateau, and thenY the binding-post is screwed into the central opening in the plateau a until theV flanged ends of the clamping-plate bend the end portions of the strap between the ianged ends of the saddle and said rims, inward toward the pipe suiicient totake up any slack the strap may possess, and make it clamp the pipe so tightly that it willl be impossible for it to move either lengthwise upon the pipe or in a oircumferential direction thereon.

The binding-post consists of a screw that hasa set-nut f thereon, by means of which the Vextent of its `passage through the clamping-plate is determined, and the extent of thefianges of the clamp can bend the strap when the latteris being tightened, as shown in F ig. 1 of the drawings. The bindingpost also has another nut g thereon for facilitating the securing of the wire thereto, the-operation of which is well understood.

What I claim as new is l. A clamp for ground contactsy for eleotrio circuits comprising a saddle having transverse channels therein, a band or strap the ends of which .pass over said channels and are suitablyV secured in said saddle, a clamp adapted to bear upon the portions of said strap bridging said channels, and a binding-post for securing said clamp to said saddle. -V

2. A clampfor ground contacts for electric circuits comprising a saddle having a transverse channel on each Vside of the center post for securing said clamp to said saddle.

3. A clamp for ground contacts for electric circuits comprising a saddle having transverse channels therein, a band or strap the ends of which pass over said channels and are suitably secured in said saddle, a channel-shaped cla-nip adapted to bea-r upon the portions of said strap bridging said channels, and a binding-postI tor securing said clanip to said saddle.

4:. A clamp for ground contacts for electrict circuits comprising a saddle having` a transverse channel on each side ot the center of length thereof, a band or strap the ends ot' which pass over said channels and are suitably secured in said saddle, a channelshaped clamp adapted to bear upon the por-- tions of said strap bridging said channels, and a binding-post for securing said clamp vto said saddle.

A clamp for ground Contact. tor electric circuits comprising a band or strap, a saddle having a transverse channel therein, and having a transverse attaching device around which one end ot' said strap passes after bridging one of said channels, a clamp adapted to bear upon theportions or" said strap bridging said channels, and a binding post for securing said clainp to said saddle.

6. A clanip for ground contacts for electric circuits comprising a band or strap, a saddle having a transverse channel therein, and having a transverse bar around Which one end of said strap passes atte-r bridging` .one of said channels, a clamp adapted to bear upon the portions of said strap bridging said channels, and a binding-post tor se` curing said clamp to said saddle.

7. A clanip for ground contacts tor electric circuits comprising al band or strap, a saddle having a transverse channel on each side ot the center of length thereof, and having a transverse device between each ot said transverse channels and said center around Which the ends of said strap passes, a clamp adapted to bear upon the portions of the strap bridging said channels, and a binding-post for securing said clamp to said saddle.

8. A clanip for ground contacts for electric circuits comprising a band or strap, a

l saddle having a lat central portion and lugs rising troni the tour corners thereot, and having transverse channels therein at the ends of said flat portion, transverse bars connecting said lugs, around which the ends of said st-rap are bent back upon the body thereof, a clamp adapted to bear upon said portions ot' said strap bridging` said channel, and a binding-post that secures said clamp to said saddle.

9. A clanip for ground contacts for electric circuits comprising a band or strap, a saddle having a transverse channel therein,

and having a transverse attaching device around which one end ot' said strap passes after bridging` one of said channels, a channel-shaped clamp adapted to bear upon the portions ot said strap bridging said channels, and a binding-post for securing said clamp to said saddle.

l0. A clamp tor ground contacts tor electric circuits comprisingl a band or strap, a saddle having` a transverse channel on each side of the center ot length thereof and having a transverse device betiveen each ot said transverse channels and said center around which the ends ot said strap passes, a chan nel-shaped clamp adapted to bear upon the portions et the strap bridging said channels, and a binding-post 'tor securingl said clamp to said saddle.

ll. A clainp tor ground contacts tor ele(l` tric circuits comprising a band or strap, a saddle having a tat central portion and lugs rising` from the tour corners thereof, and having transverse channels therein at the ends ot said tlat portion, transverse bars counecting said lugs, around which the ends ot said strap are bent back upon the bod)7 thereof, a channel-shaped clamp adapted to bear upon said portions ot said strap bridg ing said channels, and a binding-post that secures said clamp to said saddle.

l2. A clamp for ground contacts t'or electric circuits comprising a strap or band, a saddle in which ends et said strap are removably secured, a clamp adapted to engage the end portions ot said strap, and a binding-post for securingthe clamp to said saddle.

13. A clamp t'or ground contacts tor electric circuits comprising a strap or band, a saddle in which ends ot said strap are removably secured, a elalnp adapted to engage the end portions of said strap, and take up the slack in the saine` and a binding-post tor securing the clanip to said saddle.

l-l. )i clainp for ground contacts tor electric circuits comprising a strap or band, a saddle in which ends ot said strap are removably secured, havingr depressions there in, a clamp adapted to engage the end portions ot' said strap, and a binding-post tor securing the clamp to said saddle.

ln testimony whereof l have hereunto set my hand and seal this 22d ot December, A. D. 1908.

THEODORE N AGEL.

\Viti1esses FRANK D. Tnonasox, M. E. Maurin. 

